Amalgam-press.



PATENTED JUNE 16, 1908.

A. J. LEVBQUB.

AMALGAM PRESS.

APPLIOATION FILED JUNE 4. 1901.

2 SHEETS-SEEM. 1.

WHMILW 8% N0- 890,91 3. PATENTED JUNE 16, 1908.

A. J. LBVEQUE. I

AMALGAM PRESS.

APPLICATION FILED JUNE 4. 1907.

' 2 SHEETS-SHEET 2.

FIE: EL

ANTHIME J. LEVEQUE, OF LEAD, SOUTH DAKOTA.

AMALGAM-PRESS.

Specification of Letters Patent.

Patented June 16, 1908.

Application filed June 4, 1907. Serial No. 377,266.

T 0 all whom it may concern:

Be it known that I, ANTHrME J. LEVE UE, a citizen of the United States,residing at Lead, in the county of Lawrence and State of South Dakota,have invented certain new and useful Improvements in Amalgam- Presses,of which the following is a specifica tion, reference being had thereinto the accompanying drawing.

My invention relates to improvements in expressing presses and moreparticularly to one especially designed for pressing mercury fromamalgam.

The object of the invention is to provide a simple and practical deviceof this character which will be convenient in use and powerful in oeration.

ith the above and other objects in view the invention consists in thenovel construction and the combination and arrangement of partshereinafter described and claimed, and illustrated in the accompanyingdrawings, in which Figure 1 is a front elevation of my improved press;Fig. 2 is a bottom plan view of the same; Fig. 3 is a vertical section;Figs. 4 and 5 are horizontal sections taken respectively on the planesindicated by the lines 44 and 55 in Fig. 3; and Fig. 6 is a perspectiveof the ring which unites the plunger head and the screw.

My improved press comprises a body 1 preferably in the form of a castingconsisting of a base plate 2 from one face of which projects twoenlargements 3, 4. The body 1 is preferably, but not necessarily,secured in.a vertical position upon an upright support by screws orother fastenings inserted in apertures 5 in the base or attaching plate2. The lower and larger projection. or enlargement 4 is formed with alongitudinally extending cylindrical bore 6, the upper end of which isscrew threaded, as at 7, and thelower end of which also extends througha concentric boss 8 formed upon the flat bottom of the body 1 andexternally threaded, as at 9. In said enlargement 4 adjacent to its topis also formed a transverse inlet opening 10, the inner end of whichcommunicates with the bore or cylinder 6 and from the outer end of whichprojects a hopper 11. The latter may be formed integral with the body 1if desired but as illustrated it is formed separate and suitably securedin the opening 10.

In the upper and smaller projection or enlargement 3 is formed avertically disposed cylindrical opening or bore 12 which is arrangedconcentric with the cylinder 6 and is adapted to receive the similarshaped body portion of a nut 13. The latter is formed with a centralthreaded opening to receive the plunger screw 14 and one of its ends isexternally screw threaded for the rece tion of a nut 15, while its otherend is forme with an annular radially projecting flange 16 which has oneof its sides cut away or flattened, as at 17.

Upon reference to Figs. 3 and 4 it will be seen that by constructing andarranging the nut in the manner just described it is removably retainedin the body 1 by the nut 15 and is held against rotation by theengagement of the flat ortion 17 of the flange 16 with the late 2 o thebody. The feed screw 14 has a and wheel 18 or other suitable operatingelement upon its upper end and swiveled upon its lower end is a pistonor plunger 19 a apted to snugly fit the cylinder 6 but have slidingmovement therein. This plunger may be of any suitable form andconstruction but as illustrated, it comprises a cylindrical head or bodywhich has a swivel connection with the lower end of the screw 14 byforming upon the latter an annular, radially projecting flange 20 whichrotates in a recess 21 formed upon a ring 22 which surrounds the lowerend of the screw and is secured upon the top of the plunger head byscrews or other fastenings, as clearly shown in Fig. 3. The upper end ofthe cylinder 6 is closed by a plate 23 which has a threaded engagementwith the screw threads 7 and which is formed with a central openingthrough which the screw 14 is ada ted to freely work and with a reducedp0 ygonal shaped upper end for the reception of a wrench. The lower endof the cylinder 6 is closed by a screw cap 24 which is engaged with thethreads 9 of the boss 8 and is formed with a plurality of apertures 25for the discharge of the mercury. Inter posed between the lower end ofthe boss 8 and the inner or upper face of the screw cap- 24 are one ormore layers 26 of a straining or filtering material, such as canvas, andthrough which the liquid mercury may be forced while the amalgam isretained in the cylinder.

The operation of the amalgam press is as follows: The screw 14 is turnedto raise the plunger 19 above the feed opening 10, the

ltering or straining material 6 is then placed in the screw cap 24 andthe latter is threaded screening material 26 and the apertures 25 in theca and may be caught in a suitable receptac e provided for the purpose.The so id portion of the amalgam will be retained in the lower end ofthe cylinder 6 and may be removed by unscrewing the cap 24 and forcingthe plunger downwardly, as will be readily understood.

While the device is especially designed for extracting the liquidmercury from all kinds of amalgamated metals, it will be understood thatit may be used for other purposes and wherever it is desired to extractliquid from solid or partially solid substances.

Having thus described my invention what I claim and desire to secure byLetters Patent is 1. A device of the character described comprising abody having an attaching plate and upper and lower spaced projections,the lower one being formed with. a vertically extending cylindrical boreand an inlet opening intermediate its ends, a nut carried by the upperprojection, a screw arranged in said nut, a plunger upon the screw towork in said bore, a removable apertured closure for the lower end ofsaid bore and a straining or filtering material interposed between saidclosure and the lower end of the lower projection, substantially asdescribed.

2. A device of the character described comprising a body, having anattaching plate and upper and lower projections, the lower rojectionhaving a vertically extending cyindrical bore and an inlet openingintermediate its ends, the upper projection having an opening inalinement with said bore, a removable nut in the opening of the upperprojection, a screw to work in said nut, a plunger swiveled upon thescrew and adapted to reciprocate in said bore, a screw closure for thelower end of said bore, said closure being pror vided with dischargeopenings and a screening or filtering material interposed between saidclosure and the lower end of the lower projection, substantially asdescribed.

In testimony whereof I hereunto aflix my signature in presence of twowitnesses.

ANTHIME J. LEVEQUE. Witnesses:

ALFRED GRAVEL, VIoToR LEVEQUE.

